Hydraulic press



May 19, 1'925. 1,538,375 J. J. BERRIGAN HYDRAULIC PRESS Fi1ed Nov. 15. 1926 2 Sheets-Sheet l ZW/vena? May 19,1925. A 1,538,375

i l.1..1.*mamma-11ml HYDRAULIC PRESS Filed Nov. 15, 1525 2 sheets-sheet. 2

Inman/of PatentedMay 19, 1925. l

l UNITED .STATES y u1,538,375y PATENT OFFICE.

JOHNiJ'. BERRIGAN, ,OF CHICAGO, ILLINOIS, .ASSIGNOR OEV ONE-THIRD T0: JOHN B.

'BERRIGAN AND ONE-trumpV 'ro KATHERYNE ILLINOIS.

r. 'MALorL BOTH or cHroAGo,

HYDRAULIC PRESS.

Appntionmea November' 15,11923. serial No. 674,823.

To all whoml it may concern: Be it known that 1JOHN J. BERRiGAN, a citizen of the United States, residing at Chicago, in the county of Cook andState of Illinois, have invented av certain new and useful Improvementin Hydraulic Presses, of which the following is a specification.

This inventiony relates to a hydraulic press. It has for one object to provide in such a press means for heating thesame during the pressing operation. Another object is to provide means whereby the cake formed inthe press is in such formand size as to be readily removed therefrom. Another object is to provide means whereby the liquor and matter being pressed will be readily discharged and` whereby the compression pressure will be equalized and undue strain prevented. Other objects will appear fromtime to time throughout the specification and claims. n* p My invention is illustrated more or less diagrammatically` in'. the accompanyingl drawings, wherein- Figure l is a vertical cross sectionV of one form of my press showing the Vpress open for iilling; i

Figure 2 is a similar view showing the press partially closed after compression.

AFigure 3 is a longitudinal cross `section on 1an enlarged scale showing the heating Figure et is a. transverse vertical cross section throughy the press;V

Figure 5 is a horizontal crossr section taken at line 5-5 of Figure 4 showi-ng particularly the cake cuttingblades; 7

Figure 6 is a .fragmentaryvertical cross section on an enlarged lscale showing lthe floor plate construction. Like parts are designated by like charf acters throughout. Y i,

A is a frame. member. upon which is mounted a stationary platen A1. Secured to this frame member A or tothe :platen A1 is a pair of side members preferably in the form of channelsections A2 A?. These members are attached atr one endto the member A and at the other end to a similar frame member not here shown. Surrounding thepress is a housing made r4up'of side Walls BB and hingedtop covers B1. These covers are normally held closed by means of clamps B2 and Vwhen opened are. supported in the inclined position by supports B3.

. D3 to space the tops of the partitions. For

. steampipe. This pipe is formed of a cenvsupplied to the jacket.

'Beneath the press are two or more members preferably in the form of I beams C, C. These beams may be rigidly supported beneath the press in any suitable manner, but in the form shown are carried from the side walls B by means of'cleats C1 C1.

-lVithin the press is mounted a series 'of partitions D. These partitions are provided in their sides with notches D1 D1 by means of which they may rest upon the channel sections A2. lEach of the partitions The partitions yD are provided with downwardly extending portionsl D2y which'e'xtend downwardly between the I beams C, and to these portions are attached chains D3' by means of which, when the Ypress is opened the partitions are evenly spaced. Further chains D4 are providedadjacent the top and act ina manner similar to the chains the sake of `clearness the blades are not shown in Figures 2 and 3 as the scale there` is too small and in order to avoid confusion they are omitted in those figures. They are, however, shown in Figures 4 and 5.

Located centrallyrin thepress and passing through a suitable'perforation in the frame A and the platen A1 and slidably mountedV therein and ,passing through the perforations in the partitions D is a double trally Vclosed portion E vto which steam is lead by any suitable conduit E1. This pipe is closedy at itsouter end. preferably by means ofa member E2. Surrounding ther pipe C isa perforated jacket E3 to which.100 steam isconducted by anyv suitable conduit such as E4. The jacket Es isprovided with perforations Eis through which steam may escape to the interior of the press when 105 vBetween each pair of partitions I insert loosely a floor plate F. This plate when the press is fully opened lies in a sloping position as indicated in Figure 1, and as thev press is closed it will move .underA the pressure of material which lies against it gradually to a steeper slope and will iinally move over to the vertical position indicated in Figure 24 where it lies flat against the partition. Each of the partitions is provided toward its lower edge with a thinner downward portion I)6 of such thickness that when the plate assumes the vertical position shown in Figure 2 the combined thickness of the plate il and the portion D will be equal to t-he thickness of the upper part of the partition. This is advantageous as it insure pressing all parts of the cake to an equal degree. The plate F is provided with an upper annular edge F1 and has formed on its upper face one or more knife blades F2 corresponding in thickness and depth to the knife blades D5 above described.

Mounted in the press for rec-iprocation therein is a removable platen G. This platenis connected to a shaft G1 which shaft is pressed forward and drawn back by a hydraulic cylinder or other suitable pressure exerting means.

Although I have shown an operative device, still it will be obvious that many changes in size, shape and arrangement of parts may be made without departing materially from the spirit of my invention; and I wish therefore that my showing be taken as in a sense diagrammatic.

l rlhe use andV operation of my invention are as follows:

'Vhen the pressis to be used, it is mount'- ed in theposition generally shown in Figurer 1. Material to be pressed is then run into the press-so that the spaces between all the partitions are filled. The ymovable platen is then moved forward so as to press the material. `1Where the class of material being pressed makes it advisable, steam is introduced to the steam pipe, and for some purposes it may be introduced only to the inner closed pipe thus heating the press. For other purposes it may also be introtroduced to the outer perforated jacket, and

steam is thus introduced into the material being pressed andpasses otf through it and the entire body of material within the press is heated by the discharge of the steam. The pressing process continues during the heating and gradually the floor plates assume arsteeper angle and presently they are forced by reason of pressure on one face. andby reason of lack of pressure on the other face into vertical position, and in opera` tion they slip or jump into this vertical position, which is illustrated in Figure 2. This movement permits the cake to expand downwardly and tends to relieve the danger of rupture or distortion of the parts due to excessive pressure. It also, of course, permits free discharge of liquor from the press through the bottom. A

As tli movable platen nieves toward the fixed platen it contacts the closed end of the steam pipe assembly, and since the assembly is slidably niounted in the fixed platen, it is gradually pressed outward through it with the movement of the moving platen.

lllhen the pressing operation is complete the partitions are forced together to such an extent that the knife blades on each partition overlap to some extent with those on the next partition and thus the cake is cut into .several strips or pieces. At this point in the operation the movable platen is withdrawn and with ,it the partitions are spread apart again, since they are 'fastened to it. The steam pipe, however, remains in its previous position and is not withdrawn. rIhus the cake is carried longitudinally away from the steam pipe and practically all of its is freed from it. rIhus when the press is opened the cake can readily fall downward through the bottom without interference from the steam pipe which hr been left behind.

lfilhen it is desired to use the press again, the steam pipe is pushed back into the press, the floor plates are replaced in the position shown in Figure l and the press is again filled.

I claim:

l. In a press members adapted to be moved together, and a floor plate adapted to retain the contents of the press placed between said members in an inclined position and adapted as the members are moved together to have its angle of inclination increased until it reaches the vertical.

2. In a press members adapted to be moved together, and a floor plate adapted to retain the contents of the press placed between said members in an inclined position and adapted as the members are moved together to have its angle of inclination increased until it reaches the vertical, and lies flush against one of said members.

3. In a press, members adapted to be moved together, blades projecting outwardly from the face of each of said members, and a floor pla-te loosely placed between said members in an inclined position and adapted as the members are moved together to have its angle of inclination increased until it reaches the vertical.

fl. In a press members adapted to be moved togetheig'blades projecting outwardly from Vthe face of each of said members, adapted when the members are in their closest position to overlap each other, and a floor plate loosely placed between said members in an inclined position and adapted as the members are moved together to have lll its angle of inclination increased until it from the ii'acel of each Vof said members, and a Hoor plate loosely placed between said members in an inclined position and adapted asthe members are moved together to have its angle of inclination increased until it reachesthe vertical, and means for heating the interior of said press, said heating means including'` means for vdischarging c heated' luid'into the interior of said press, andy means for Y circulating av heating medium througha. closed circuit within said press.

6. Ina press, platens adapted `to be moved together and a partition between them each provided witha blade extending outwardly from its face, in combination with aloose plate forming the ioor of said press, lying normally in an inclined position and adapted as the press is closed to assume a steeper angle of inclination and adapted finally to move to a vertical position.

7.- In a press, platens adapted to be moved together and a partitiony between them each provided with a blade extending outwardly from its face, means for heating the interior of said press comprising a closed heating circuit in combination with an open means for discharging va heated iiuid into the interior of said press, in combination with a loose plate forming the licor of said press, lying normally in an'inclined position and adapted as the press is closed to assume a steeper angle of inclination and adapted finally to move to a vertical position.

8. In arpress, means for' heating the interior thereof comprising a closed circuit through which heated fluid is circulated and an open circuit from which heated fluid is free to discharge into the interior of the press. l

9. In a press, means for heating the `interior thereof comprising a closed circuit through which heated fluid is circulated and an open circuit from which heated fluid is free to discharge intoV they interior of the press, said heating means being slidably mounted within said press and adapted in the operation of the press/to be partially pushed out therefrom.

10. Meansvfor heating a hydraulic press comprising a pipe assembly slidably mounted therein, said assembly provided with an interior closed heating pipe, means -tor introducing heat thereto, there being about said Lclosed pipe a` perforated surrounding pipe, means for supplying steam to said surrounding pipe, thesaid pipe being adapted to permit the escape of said steam throughv its perforations to the interior of said press.

11.V In a hydraulic press, a .plurality of partitions, each of said partitions provided with cutting blades.

12. In a press a plurality of partitions, each of said partitions varying .in thickness lroni its top to its bottom, and each being provided in each oi.' its sides with a plurality oflinife blades, said blades being oli'set so kthat those of one partition may overlap those oi' its adjoining partition when the same are pushed together, said blades being adapted to cut the caire between a pair of partitions into a plurality of portions.

13. In a hydraulic press having an open bottom, one or more loose iioor plates, said plates being loosely set intosaid press and occupying when the press is open an inclined position, adapted as the presscloses to increase the angle of said inclination until as the press approaches its inner limit they pipe assembly slidable therein and adapted to be pushed out longitudinally by means of the movement of one of said platens, said asseinbly'including a closed heating pipe, means for introducing steam to the same, and a surrounding open heated pipe adapted to discharge steam into the interior of said press, and means Jfor supplying steam to saidk open pipe, a plurality'of loose iioor plates mounted 'one between each pair of partitions, said loor ,plates adapted `when the press is open to lie in an inclined position and adapted as the press is closed to assume a steeper angle of inclination and adapted finally as the press rapproachesitseXtreme closed position to move into a vertical position and to lie against one of the partitions between which it is positioned, said floor the compartments within which they lie.

15. In a press, members adapted to be moved together and a lloorplateadapted to support the contents of said -press placed between said members in an inclined position and adapted as the members are moved together to have its angle of inclination in creased. f Y

16. In a press, a pair of members adapted to be moved together and a partition between said members and floor plates on each side of said partition adapted to support the contents of the press and placed in an inclined position and adapted, as the mem-k bers are moved together, to have their angle of inclination increased until they reach the vertical. f

17. In a press, members adapted to be moved together and a partition between plates provided with knife blades adaptedk to serve as continuations of the blades ot them, lloor plates on either side of said partition adapted to support the contents of the press placed in an inclined position and adapted as the members are moved together to have its angle ot inclination increased and flexible members beneath said floor plates attached to said press members and to said partitions. f

18. n a press means for closing the bottom ot said press, including a plate adapted to retain the contents of the press extendinglaterally across the bottom of said press lying in a generally inclined plane.

19. ln a press means 'rer closing` the bottom of said press, including a plate adapted to retain the contents of the press extending` laterally across the bottoni of said press lying in a generally inclined plane, said plate adapted when closed to form a steeper angle of inclination and finally assume a vertical position7 and in such vertical position to lie against a transverse Wall of said press.

Signed at Chicago, county of Cook and State of Illinois, this 13th day of November, 1923.

JOHN J. BERRIGAN. 

